<?php
//include_once("../../a123.php");
//include_once("3/c123.php");
require_once("../../a123.php");
require_once("3/c123.php");

$b = "PHP";

echo "\n------>",__FILE__,"\n";

echo "\n------>",$b,"\n------>",$c,"\n------>",$a,"\n------>";

echo happy(),"\n",sad(),"\n";
